Add docker console logging

i have the problem that the acme.sh container does not show logs (docker-compose logs acme.sh), to fix this i changed the crond parameters. 

/ # crond --help
BusyBox v1.30.1 (2019-06-12 17:51:55 UTC) multi-call binary.

Usage: crond -fbS -l N -d N -L LOGFILE -c DIR

	-f	Foreground
	-b	Background (default)
	-S	Log to syslog (default)
	-l N	Set log level. Most verbose 0, default 8
	-d N	Set log level, log to stderr
	-L FILE	Log to FILE
	-c DIR	Cron dir. Default:/var/spool/cron/crontabs

Dockerfile

@@ -59,7 +59,7 @@ RUN for verb in help \
 RUN printf "%b" '#!'"/usr/bin/env sh\n \
 if [ \"\$1\" = \"daemon\" ];  then \n \
  trap \"echo stop && killall crond && exit 0\" SIGTERM SIGINT \n \
- crond && while true; do sleep 1; done;\n \
+ crond -l 2 -f && while true; do sleep 1; done;\n \
 else \n \
  exec -- \"\$@\"\n \
 fi" >/entry.sh && chmod +x /entry.sh